am db940f2a: Move ExifInterface from com.android.camera to android.media package.

Merge commit 'db940f2a0ed054ea4d3f39e823220ecf1b15f64c'

* commit 'db940f2a0ed054ea4d3f39e823220ecf1b15f64c':
  Move ExifInterface from com.android.camera to android.media package.